Woods

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  • Created by: Emma
  • Created on: 13-03-13 15:25
Softwood
Scots pine, Spruce, Douglas fir
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Hardwood
Oak, Ash, Walnut, Yew, Beech, Teak
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Structure of Wood
All woods a\re fibrous with the fibres (or grain) growing along the length of the trunk or branch. These fibres consisit of cells (tracheids) of, mainly, cellulose supported by lignin resin.
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Strenght in Wood
Wood has its greatest strength in the direction of the fibres.
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Defects in Wood
It is a natural material so is not as consisitent in structure as polymers.
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Knots
Knots can weaken the structure of the material as well as produce an irregular pattern.
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Conversion of Wood
Term used when sawing a tree trunk into useable pieces of timber. 2 basic forms; sawn and quarter sawn.
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Other cards in this set

Card 2

Front

Oak, Ash, Walnut, Yew, Beech, Teak

Back

Hardwood

Card 3

Front

All woods a\re fibrous with the fibres (or grain) growing along the length of the trunk or branch. These fibres consisit of cells (tracheids) of, mainly, cellulose supported by lignin resin.

Back

Preview of the back of card 3

Card 4

Front

Wood has its greatest strength in the direction of the fibres.

Back

Preview of the back of card 4

Card 5

Front

It is a natural material so is not as consisitent in structure as polymers.

Back

Preview of the back of card 5
View more cards

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